L. P. Kalacheva, I. K. Ivanova, A. S. Portnyagin, M. E. Semenov, V. K. Ivanov, A. R. Bubnova, “Equilibrium conditions of the methane and natural gas hydrates formation in sodium bicarbonate solutions”, Mendeleev Commun., 2023, Volume 33, Issue 5,Pages <nobr>619

This article is cited in 4 papers

Communications

Equilibrium conditions of the methane and natural gas hydrates formation in sodium bicarbonate solutions

L. P. Kalacheva^a, I. K. Ivanova^a, A. S. Portnyagin^a, M. E. Semenov^ab, V. K. Ivanov^a, A. R. Bubnova^a

^a Institute of Oil and Gas Problems, Siberian Branch of the Russian Academy of Sciences, Yakutsk, Russian Federation
^b Institute of Geology and Petroleum Technologies, Kazan Federal University, Kazan, Russian Federation

Abstract: Empirical correlations were obtained to calculate the equilibrium pressure of the methane and natural gas (the Srednevilyui gas and condensate field) hydrates formation in sodium bicarbonate solutions, the hydration numbers and dissociation heats of these hydrates were determined. The values of the hydration numbers assume that methane forms hydrates with the CS-I structure and natural gas – CS-II. The dissociation heat of the natural gas hydrates is higher than that of the methane hydrates.

Keywords: gas hydrates, methane, natural gas, sodium bicarbonate, equilibrium conditions.

Language: English

DOI: 10.1016/j.mencom.2023.09.009